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CVE-2016-9919

Published: 8 December 2016

The icmp6_send function in net/ipv6/icmp.c in the Linux kernel through 4.8.12 omits a certain check of the dst data structure, which allows remote attackers to cause a denial of service (panic) via a fragmented IPv6 packet.

From the Ubuntu Security Team

Andrey Konovalov discovered that the ipv6 icmp implementation in the Linux kernel did not properly check data structures on send. A remote attacker could use this to cause a denial of service (system crash).

Notes

AuthorNote
jdstrand
android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.10 and earlier preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty Not vulnerable

upstream
Released (4.9~rc8)
xenial Not vulnerable

yakkety Not vulnerable
(4.8.0-32.34)
Patches:
Introduced by

5d41ce29e3b91ef305f88d23f72b3359de329cec

Fixed by 79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2
linux-armadaxp
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty Does not exist

upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Not vulnerable

upstream
Released (4.9~rc8)
xenial Not vulnerable

yakkety Does not exist

linux-flo
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.9~rc8)
xenial Not vulnerable

yakkety Not vulnerable

linux-gke
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (4.9~rc8)
xenial Not vulnerable

yakkety Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.9~rc8)
xenial Not vulnerable

yakkety Not vulnerable

linux-grouper
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (4.9~rc8)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (4.9~rc8)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

linux-linaro-omap
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty Does not exist

upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was not-affected)
upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Not vulnerable

upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

linux-mako
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.9~rc8)
xenial Not vulnerable

yakkety Not vulnerable

linux-manta
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

linux-qcm-msm
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (4.9~rc8)
xenial Not vulnerable

yakkety
Released (4.8.0-1022.25)
linux-snapdragon
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (4.9~rc8)
xenial Not vulnerable

yakkety Not vulnerable

linux-ti-omap4
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty Does not exist

upstream
Released (4.9~rc8)
xenial Does not exist

yakkety Does not exist

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H